I haven't done much reloading but when I do I methodically go over every case and size them. The manuals are there for a reason and if it say's do it I think it should be done. Reloading isn't there just to save money but it should be an enjoyable process and if someone finds part of it boring or skips parts to save time maybe they should just go and buy some factory loads !!!
It might save them a lot of pain in the long run
Jamie